Trolley-pole.



C. P. IAMS & J. A. RAMSEY.

TROLLEY POLE.

APPLICATION FILED JULY 15, I916.

1,21 7,946. Patented Mar. 6, 1917.

INVENTORS ATTO N EY STAEs ATE OFFIC.

.CHAKLES IAJVISAND was BeM Ev 97 WASH NG ON PE Y VAN Y mq L -tota- To all whom z't may concern:

Be it known that :we, CHARLES 1 IAMS and JULIAN A. RAMSEY, citizens of the United States of America, and residents of \Vashington, county of WVashington, and

State of Pennsylvania, have invented cersuch an extent as materially lessens the tendency of said wheel to leave the wire.

A further object is to provide a device of the character mentioned which is of simple, inexpensive and durable construction and which is but little liable to become out of order.

WVith these and other objects in view, the invention resides in the features of construction which will hereinafter be de scribed, reference being had to the accompanying drawings, in which' Figure 1 is a side elevation of the invention; and- Fig. 2 is a front elevation of the same.

Referring to said drawings, in which like designating characters distinguish like parts throughout the several views 1 indicates the main body portion of a sectional trolley pole which may be mounted on'a car in any appropriate. manner. Piv otally connected to the upper end of said portion 1 is a relatively shorter pole section 2 the upper end of which is adapted for receiving the usual trolley harp 3 carrying the trolley wheel 4:.

Rigidly carried by, or formed integral with, the body portion 1 adjacent to its up per end is a rearwardly extending arm 5 which is disposed at such an angle with respect to said body portion that it lies approximately in a horizontal position when said body portion occupies its normal inclined position.

Pivotally connected to the pole section 2 adjacent to the upper end thereof is the upper end of a rod or stem 6 which is movably received adjacent to its lower end in a ver- U Specification of Letters lPatent. Application filed July 15, 1916.' Serial No. 109,427. V. K i

tically disposed ,slot orv opening 7: provided 1 Patented Mar. 6,1917.

therefor in-the outer .endofthe arm 5. E11.- 7 V c rclingpsaid stem 6 is a v spiral spring ,8 1

which has its lower end seated upon said arm 5 and its upper end against afixedabut ment,as the collar 9, carried by said stem. An adjusting nut 10 is threaded upon the lower projecting end of the stem 6 whereby the extent of elevation of the pole section 2 under the force exerted by the spring 8 is limited.

v In its normal position the stem 6 stands in a forwardly inclined position yieldingly supporting the wheel-carrying pole-section 2 in a position wherein it is elevated out of alinement with the lower pole section 1, as shown in full lines in Fig. 1. The spring 8 readily yields to the pressure or weight of the trolley wire 11 upon the 'wheel and the relatively light movable parts carried by the main pole-section 1 swing downward, as

indicated in dotted lines in said figure. .As I

is apparent, due to the relative lightness and consequent sensitiveness of the spring, the wheel lightly tracks the trolley wire in rounding curves and instantly accommodates itself to variations in elevation of said wire, all with but little tendency to leave said wire. What is claimed is 1. A trolley pole comprising a main body portion, a relatively short pole section pivotally connectedat one end to the upper end of said body portion, an arm carried by said body portion adjacent to the upper end of the latter and extending rearward therefrom, a spiral spring interposed between said arm and said short pole section whereby the latter is yieldingly supported, and a stem encircled by said spring, said stem being pivotally connected to said pole section and being movable in a substantially vertical direction with respect to said arm. 2. A trolley pole comprising a main body portion, a relatively short pole section pivotally connected at one end to the upper end of said body portion, anarm earried'by' said body portion adjacent to the upper end of the latter and extending rearward therefrom, a rod-like stem having its upper end pivotall connected to the upper pole section ad acent to the upper end of the latter and having its lower end freely movable through the outer end of said arm,.and a spiral spring encircling said stem and yieldingly supporting said upper-pole section.

3. A trolley pole comprising a main body of the latter and extending rearward there; y

from, a rod-1ike stem having its upper end pivotally connected to the upper pole section adjacent to the upper end of the latter and having its lower end freely movable through the outer end of said arm, an adj usting nut threaded upon the lower end of said stem for limiting the extent of elevation of said upper pole section, and a spiral spring encircling said stem, said spring being disposed to yieldingly support said 15 upper pole section in elevated position With respect to said arm.

In testimony whereof We aflix our signatures in presence of tWo Witnesses.

CHARLES P. IAMS.

JULIAN A. RAMSEY.

Witnesses:

CLYDE C. HEADLEY,

JAMES A. MAGILL.

Copies of this patent may, be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. G. 

